diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 21b6b1eb77..d4a73e96b3 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -847,10 +847,12 @@ bool cmSystemTools::RunSingleCommand(std::vector<std::string> const& command,
                                      std::string* captureStdOut,
                                      std::string* captureStdErr, int* retVal,
                                      char const* dir, OutputOption outputflag,
-                                     cmDuration timeout, Encoding encoding)
+                                     cmDuration timeout, Encoding encoding,
+                                     std::vector<std::string> env)
 {
   cmUVProcessChainBuilder builder;
   builder.SetExternalStream(cmUVProcessChainBuilder::Stream_INPUT, stdin)
+    .SetEnvironment(std::move(env))
     .AddCommand(command);
   if (dir) {
     builder.SetWorkingDirectory(dir);
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index c28a0b2516..231342f3b6 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -293,7 +293,8 @@ public:
                                char const* dir = nullptr,
                                OutputOption outputflag = OUTPUT_MERGE,
                                cmDuration timeout = cmDuration::zero(),
-                               Encoding encoding = cmProcessOutput::Auto);
+                               Encoding encoding = cmProcessOutput::Auto,
+                               std::vector<std::string> env = {});
 
   static std::string PrintSingleCommand(std::vector<std::string> const&);